This is a work in progress supernatural horror map in it's very early stages (doesn't even have the story line yet). One little extra cool feature I thought I would add is actual occasional traffic on some of the roads, which does not stop for pedestrians because pedestrians do not get the right of way where the setting of this map takes place. If the car runs into you, and you are not in creative mode, you will die.
I created this with a custom block model of a car worn on the head slot of an armor stand being teleported a few blocks above relative to the position of a minecart running underneath the roadways. There are random junction timers that randomly determine whether the car will turn on to the small 1 lane village road. eventually I want to extend the path of the traffic further down the road, outside of the village, and have the cars delete themselves when too far from the player, and create a system for randomly generating new cars. Sounds like it will be kind of tricky.